Bottle-stopper



' LAUHC'PF."

BOTTLE STOPPER.

Patented Tab. 1751893.

' wbanfoz THE ncmus Pmls 00.. Moro-um, wAsmNm'oN. D. c.

UNITED STATES PATENT OFFICE.

JOSEPH LAUHOFF, OF DETROIT, MICHIGAN.

BOTTLE-STOPPER.

SPECIFICATION forming part of Letters Patent No. 491.119, dated February'7, 1893.

Application filed May 25, 1892. Serial No. 434,324- (No model.)

To all whom it may concern:

Be it known that I, JOSEPH LAUHOFF, a citizen of the United States,residing at Detroit,

' invention, such as will enable others skilled in the art to which itappertains to make and use the same, reference being had to theaccompanying drawings, which form a part of this specification.

My invention relates to a certain new and useful Improvement in a bottlestopper, and

it consists of the devices and appliances hereinafter specified andclaimed, and illustrated in the accompanying drawing, which is avertical section showing my invention.

The desirability of having a bottle of simple, economical and eflicientconstruction, whereby the contents of the bottle will be sealed airtight is well understood.

I carry out my invention asfollows:

A represents a bottle. The upper end of the neck of the bottle ispreferably made of conical form, or rather in the form of a frustum of acone, as shown at A. Just below the base of the frustum portion of theneck, the neck is exteriorly threaded, as shown at a, a shoulder beingformed above the threaded port-ion as shown at a. r

B denotes a cap having an interiorly threaded portion at its base, asshown at b to en-' gage the threaded portion of the neck of the bottle.The interior of the cap is shaped to conform to the shape of the upperend of the neck of the bottle. Within the cap I locate an elastic liningC of rubber, or other suitable material, shaped to conform to the upperend ofthe neck of the bottle. The lining is so inserted within the capas to form a shoulder at its base as shown at o to fit down upon theshoulder at a' of the neck, when the stopper is tightly applied to thebottle. The length of the lining together with that of the cap, and itsscrew threaded engagement with the neck, is such that in screwing downthe cap upon the neck the shoulder, or lower end of the lining will seatupon the shoulder a before the cap is entirely forced home, inconsequence of which a compression will be exerted upon the nipple topack it in more closely between the cap and the neck of the bottle, theconical shape aiding and facilitating the wedging of the lining inbetween the cap and the neck as the cap is forced tightly to the limitof its movement. It will be seen thatiu so applyingthe cap and itslining the head or upper portion of the latter is thus forced tightlyupon the upper edge of the neck to tightly close the opening in theneck, while also the lining is firmly pressed upon the neck the wholelength thereof from the upper edge of the neck to the threaded portion,the base of the lining also seating tightly upon the shoulder a of theneck. In this manner the nipple is closely seated atall points upon theadjacent neck of the bottle, and sealed especially in a most completemanner, so as to be perfectly air tight at the upper edge of the neck,and at the shoulder a, so as to elfectually withstand any internalpressure which may bepresent in the bottle when used, for example 1 inbottling beer, and analogous liquids. The neck above the threadedportion being made tapering, preferably, wedges into the cap and liningas they are forced thereupon. By this construction, moreover, it will beseen, that in removing the stopper, as soon as the stopper is unsealedso as to permit the pressure of the gas within the bottle to begin toescape, the gas striking against the interior of the lining within thecap is deflected thereby and so compelled to pass'downward between thecap and the neck of the bottle, and thus is prevented from flying upinto the face, as is the case in unstopping other bottles in common use.

The cap is preferably constructed with a shoulder as at b above thethreaded portion thereof upon which the adjacent edge at the base of thelining seats, and whereby the lining is held in place. The lining ishowever removable in case it should be desirable to renew it.

What I claim as my invention is:

1. A bottle stopper consisting of an outer cap interiorly thread-ed atits lower end, and a lining located within the cap, extending down theinterior sides of the cap to embrace the side of the neck of the bottle,and extend- IOO ing over the upper end of the chamber of said cap tocover the mouth of the bottle, substantially as described.

2. A bottle stopper consisting of an outer cap interiorly threaded atits lower end, and an elastic lining located within the cap covering theupper end of the chamber within the cap, to cover the mouth of thebottle, and extending down the interior sides of the cap to the threadedportion thereof, forming a shoulder at the base of the lining,substantially as described.

3. The combination with a bottle having its neck exteriorl y threadedbelow the upper edge thereof and provided with a shoulder above thethreaded portion, of a stopper consisting of an outer cap threaded toengage the threaded portion of the neck, and a lining located within thecap to seat upon the upper edge of the neck and upon said shoulder, saidlining covering the upper end of the chamber within said cap to coverthe mouth of the bottle, substantially as described.

4. lhe combination with a bottle having a neck tapered at its upper endand threaded below the tapering portion and provided with a shoulderabove the threaded'portion, of an outer cap threaded at its lower end toengage the threaded portion of the neck, and provided with an interiorlining located above the threaded portion of the cap, to seat upon theupper edge of the neck, upon the tapered portion thereof, over the mouthof the bottle, and upon said shoulder, substantially as described.

5. Abottle stopper consisting of an outer cap interiorly threaded at itslower end and formed with a shoulder b above the threaded portion, andan elastic liniug'located Within the cap extending across the top of thechamber within the cap, and having its adjacent lower edge seated uponsaid shoulder, substantially as described.

In testimony whereof I sign this specification in the presence'of twowitnesses.

JOSEPH LAUHOFF. Witnesses:

N. S. WRIGHT, JOHN F. MILLER.

